Superficial Face

Question 1

Somatosensory Innervation of the superficial face

Answer 1

• Trigeminal nerve (CN V)
  
  • Superficial face
  • Forehead
  • oral cavity
  • etc.
• Facial Nerve (CN VII)
  
  • Skin of outer ear
  • nasopharynx
  • taste

Question 2

Somatomotor innervation of the superficial face

Answer 2

• Trigeminal Nerve (CN V)
  
  • muscles of mastication
• Facial nerve (CN VII)
  
  • Muscles of facial expression

Question 3

The greater occipital nerve emerges from below the ______

Answer 3

suboccipital triangle (below obliquus capitits inferior m.)

Question 4

innervates skin over the parotid gland and mastoid process along with both surfaces of outer ear

Answer 4

Greater Auricular Nerve (ventral rami of C2 and dorsal rami of C3)

Question 5

Innervates scalp on lateral area of head, posterior to ear

Answer 5

Lesser occipital Nerve (Ventral Rami of C2)

Question 6

Innervates skin on all of face, forehead, temporal region, oral cavity, skin of outer ear and external audiotry meatus

Answer 6

Trigeminal Nerve

Question 7

Innervates only skin of outer ear

Answer 7

Facial Nerve (CN VII)

Question 8

The Opthalmic Nerve(CN V1) exits the skull through the

Answer 8

Superior orbital fissure (SRO)

Question 9

innervates skin of medial forehead

Answer 9

Supratrochlear nerve (branch of opthalmic nerve)

Question 10

Innervates lacrimal gland

Answer 10

• Lacrimal nerve (which is a branch off the opthalmic)

Question 11

Innervates skin lateral to root of nose

Answer 11

• Infratrochlear nerve (branch of opthalmic nerve)

Question 12

innervates skin of nasal ala, vestibule and dorsum of nose

Answer 12

• External Nasal nerve (branch of opthalmic nerve)

Question 13

The maxillary nerve

Question 14

How can you remember the foramen of the skull for the branches of the trigeminal nerve

Answer 14

• SRO
• (standing room only)
  
  • Opthalmic (V1)
    
    • Superior Orbital fissure
  • Maxillary (V2)
    
    • foramen Rotundum
  • Mandibular (V3)
    
    • Formaen Ovale

Question 15

innervates maxillary sinus, skin of cheek, lateral nose, and superior lip

Answer 15

Infraorbital nerve (branch off the Maxillary nerve)

Question 16

Innervates skin on prominence of cheek

Answer 16

• Zygomaticofacial nerve (is a branch of Maxillary nerve (V2)

Question 17

Innervates Anterior part of temporal fossa

Answer 17

Zygomaticotemporal nerve (branch off Maxillary nerve (V2))

Question 18

The mandibular nerve exits the skull through the

Answer 18

foramen ovale

Question 19

Innervates skin posterior 2/3 temporal region

Answer 19

Auriculotemporal nerve (branch of Mandibular nerve)

Question 20

Innervates skin and oral mucosa of cheek and gums

Answer 20

• Buccal nerve (branch of mandibular nerve)

Question 21

Innervates skin of the chin and inferior lip

Answer 21

Mental nerve (branch of mandibular nerve)

Question 22

Functions of the Buccinator

Answer 22

Compresses cheek, holds food between teeth during chewing

Question 23

functions of depressor anguli oris

Answer 23

Draws corners of mouth inferiorly and laterally (“forwn” muscle)

Question 24

Funcitons of dperessor labii inferioris

Answer 24

Draws lower lip inferiorly

Question 25

Functions of levator anguli oris

Answer 25

draws corners of mouth superiorly and laterally ("smile" muscle)

Question 26

Functions of Levator labii superioris

Answer 26

* Opens lips * raises and furrows the upper lip ("Elvis" lip snarl)

Question 27

Functions of Mentalis

Answer 27

* Protrudes lower lip ("pout") * wrinkles chin

Question 28

Funcitons of Risorius

Answer 28

* Draws corner of lip laterally * tenses lips * synergist of zygomaticus

Question 29

Functions of Orbicularis oris

Answer 29

Compresses and purses lips ("kiss" muscle)

Question 30

Functions of Zygomaticus major

Answer 30

Elevates corner of the mouth (smile muscle)

Question 31

Zygomaticus minor functions

Answer 31

* Elevates corner of the mouth (smile muscle)

Question 32

Functions of orbicular oculi

Answer 32

Blink/close eyes

Question 33

functions of platysma

Answer 33

tense skin of neck

Question 34

functions of frontal belly of occipitofrontalis

Answer 34

* wrinke forehead * Raise eyebrows

Question 35

The facial nerve exits the skull via

Answer 35

The Sylomastoid Foramen

Question 36

What artery(ies) of the face come from the internal carotid

Answer 36

* Supra-orbital artery * Supratrochlear artery

Question 37

What is the only superficial branch of the Maxillary artery

Answer 37

Mental artery

Question 38

What is the largest salivary gland

Answer 38

* parotid gland

Question 39

The Parotid Gland receives sensory innervation from

Answer 39

great auricular nerve

Question 40

The parotid gland delivers saliva to oral cavity just lateral to

Answer 40

2nd upper molar teeth

Question 41

Accommodation

Answer 41

* Suspensory ligaments from ciliary body (ciliary m.) go to lens to control focus * ciliary m. relaxed -\> tension on suspensory ligaments -\> lens stretched out for far vision * Ciliary m. contracts -\> suspensory ligaments relaxed -\> lens becomes fatter for near vision * To view near objects, parasympathetics are activated to contract ciliary muscle (contricting pupil) * To view far objects, parsympathetics are simply removed, allowing the ciliary to relax, no sympathetics involved (lens dilates)

Question 42

Question 43

Question 44

Question 45

Question 46